900111011111111 has 32 divisors (see below), whose sum is σ = 966076236066816. Its totient is φ = 836553405600000.

The previous prime is 900111011111087. The next prime is 900111011111177. The reversal of 900111011111111 is 111111110111009.

It is not a de Polignac number, because 900111011111111 - 2¹⁴ = 900111011094727 is a prime.

It is a Duffinian number.

900111011111111 is a modest number, since divided by 11111111 gives 9001110 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900111013111111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2678486666 + ... + 2678822696.

It is an arithmetic number, because the mean of its divisors is an integer number (30189882377088).

Almost surely, 2^{900111011111111} is an apocalyptic number.

900111011111111 is a deficient number, since it is larger than the sum of its proper divisors (65965224955705).

900111011111111 is a wasteful number, since it uses less digits than its factorization.

900111011111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347663.

The product of its (nonzero) digits is 9, while the sum is 20.

The spelling of 900111011111111 in words is "nine hundred trillion, one hundred eleven billion, eleven million, one hundred eleven thousand, one hundred eleven".